Improvement in attaching knobs to their spindles



J. R. GIL-L & w. R. BAKER.

lmpro veme nt in Attaching Knob to thir Spindles.

Paten ted May 21,1872.

ul-i-z to be jerked otf the shank.

UNITED STATES PATENT OEEIoE.

JOSEPH R. GILL, OF HAMILTON, AND WILLIAM E. BAKER, OF WELLINGTON SQUARE,oANADA.

IMPROVEMENT IN ATTACHING KNOBS TO THEIR SPINDLES.

Specification forming part of Letters Patent N 0. 127,046, dated May 21,1872.

SPEcIEIcATIoN.

We, JosEPE REAvEs GILL, of the city of Hamilton, in the county ofWentworth, in the Province of Ontario, Canada, and WILLIAM RONDEAUBAKER, of Wellington Square, in the county of Halton, in the Province ofOntario, Canada, have invented certain new and useful Improvements inAttaching Door-Knobs to Spindles, of which the following is aspecification:

The object of the invention is to provide an improved device forattaching door-knobs, &c., to spindles, that will be simple inconstruction, effective in operation, and not liable to get out oforder.

By reference to the annexed drawing it will be observed that Figure l isa section of a door=knob and spindle; Fig. 2, a plan of same.

a represents a section of a door; f, a spindle; b, a scutcheon; c, ashank of knob d, a knob e, an eccentric; g, a spring.

- The ordinary method of fastening knobs to spindles is by a small screwpassed through the outside of the shank into the spindle. A

number of holes also requires to be cut into the spindle, for thepurpose of allowing for doors of difi'erent degrees ofthickness; Thereare many objections to this plan. In the first place, there are too manyholes to drill and prepare, which increases the cost of manufacture.Frequently it is difficult to adjust a knob, as the holes on a spindlemay not come opposite the screw on the shank, which would leave the knobloose, rendering it more liable The constant opening and shutting ofdoors soon causes the small fasteningscrew to become loose and drop out,and when lost it is difficult to replace.

By the use of our device all this is avoided.

There are no holes drilled in the none in the shank.

The shank of knob 61 Fig. 1, is securedby a screw, in the usual way, andwill be placed on the outside of a door. The inside knob d spindle, and

and scutcheon will be secured to the spindle f as follows: The-scutcheonb and shank m are made in one piece, as shown, in the center of whichare constructed projections o 0, between which is hung, on the pin 12, asmall eccentric, e, the lower end of which drops on the spindle fandgrasps it firmly, so that it cannot easily be withdrawn. A small spring,g, passing through the eccentric 'e and firmly riveted to it as shown,keeps it always in its position. A small opening, a, is made in thescutcheon, opposite the upper part of the cocentric, for the purpose ofpushing it back, and releasing it when it is necessary to remove theknob. It may also be noticed that a rimwasher, 6, shown more clearly bydotted lines in Fig. 2, is screwed to the door under the knob, andcovered by the scntcheon, which. is made to fit it. Its use is toprevent the strain on the lock. For rim-locks the washer will be on oneside only.

The advantages of our device over the ordinary fastening are as follows:First, its simplicity and eii'ectiveness. Second, there is nothing aboutit likely to get out of order. Third, knobs can be removed with greaterease. Fourth, an improved appearance over the old method. Fifth, itsadaptability to doors of dilferent thickness.

Disclaiming all else, what we claim as our invention, and desire tosecure by Letters Patcut, is

The arrangement and combination of eccentric 6, spring 9, knob-shank m,and spindlef, substantially as described, and for the purpose set forth.

JOSEPH REAVES GILL. WILLIAM RONDEAU BAKER.

Dated at Hamilton, Canada, this 30th June,

Signed in the presence of- W. BRUCE, WALTER ATHERTON.

